adjust BASE_PATH, PATH and JAR_PATH for java-pkg-simple.eclass

--- a/src/test/javassist/JvstTest4.java
+++ b/src/test/javassist/JvstTest4.java
@@ -635,10 +635,10 @@ public class JvstTest4 extends JvstTestRoot {
         assertEquals(packageName, obj.getClass().getPackage().getName());
     }
 
-    public static final String BASE_PATH = "../../";
+    public static final String BASE_PATH = "";
     public static final String JAVASSIST_JAR = BASE_PATH + "javassist.jar";
-    public static final String CLASSES_FOLDER = BASE_PATH + "build/classes";
-    public static final String TEST_CLASSES_FOLDER = BASE_PATH + "build/test-classes";
+    public static final String CLASSES_FOLDER = BASE_PATH + "target/classes";
+    public static final String TEST_CLASSES_FOLDER = BASE_PATH + "target/test-classes";
 
     public static class Inner1 {
         public static int get() {
--- a/src/test/javassist/JvstTestRoot.java
+++ b/src/test/javassist/JvstTestRoot.java
@@ -5,10 +5,10 @@ import java.lang.reflect.Method;
 
 public class JvstTestRoot extends TestCase {
     // the directory where all compiled class files are found.
-    public static final String PATH = "../../target/test-classes/";
+    public static final String PATH = "target/test-classes/";
 
     // the directory where javassist.jar is found.
-    public static final String JAR_PATH = "../../";
+    public static final String JAR_PATH = "";
 
     ClassPool sloader, dloader;
     Loader cloader;
--- a/src/test/javassist/JvstTest2.java
+++ b/src/test/javassist/JvstTest2.java
@@ -333,8 +333,8 @@ public class JvstTest2 extends JvstTestRoot {
 
         url = cp.find("javassist.CtMethod").toString();
         System.out.println("testURL: " + url);
-        assertTrue(url.startsWith("file:"));
-        assertTrue(url.endsWith("/javassist/CtMethod.class"));
+        assertTrue(url.startsWith("jar:file:"));
+        assertTrue(url.endsWith("javassist.jar!/javassist/CtMethod.class"));
 
         assertNull(cp.find("javassist.TestURL"));